Immobilized mixed-culture reactor (IMcR) for hydrogen and methane production from glucose

Satar, Ibdal; Daud, Wan Ramli Wan; Kim, Byung Hong; Somalu, Mahendra Rao; Ghasemi, Mostafa

doi:10.1016/j.energy.2017.08.071

Cited by 23 publications

(31 citation statements)

References 34 publications

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“…A third set of MFCs was equipped with unmodified carbon cloth anodes, and the MFCs were filled with alginate capsules used to trap bacterial cells. Capsules were prepared following a previously reported procedure . Briefly, a similar amount of grown EAGSL was harvested by centrifugation and resuspended in sterilized SRB.…”

Section: Methodsmentioning

confidence: 99%

“…Alginate is an extremely abundant biopolymer in the world, derived from seaweed . Immobilization of bacterial cells in alginate capsules enables high cell density to be obtained and increases the stability of bacterial communities by limiting changes in the surrounding environment (i.e., drastic change in substrate concentration, etc.). The results showed that by applying Salinivibrio sp.…”

Section: Introductionmentioning

confidence: 99%

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Alginate‐Encapsulated Bacteria for the Treatment of Hypersaline Solutions in Microbial Fuel Cells

et al. 2018

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A microbial fuel cell (MFC) based on a new wild-type strain of Salinivibrio sp. allowed the self-sustained treatment of hypersaline solutions (100 g L , 1.71 m NaCl), reaching a removal of (87±11) % of the initial chemical oxygen demand after five days of operation, being the highest value achieved for hypersaline MFC. The degradation process and the evolution of the open circuit potential of the MFCs were correlated, opening the possibility for online monitoring of the treatment. The use of alginate capsules to trap bacterial cells, increasing cell density and stability, resulted in an eightfold higher power output, together with a more stable system, allowing operation up to five months with no maintenance required. The reported results are of critical importance to efforts to develop a sustainable and cost-effective system that treats hypersaline waste streams and reduces the quantity of polluting compounds released.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Alginate‐Encapsulated Bacteria for the Treatment of Hypersaline Solutions in Microbial Fuel Cells

et al. 2018

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“…The main cell immobilization techniques which have been assessed and have brought net positive contributions to enhance the biomass-based hydrogen generation kinetics are adsorption-based and attachment type immobilizations (Basile et al, 2010;Wu et al, 2012;Reungsang et al, 2013), encapsulation-based immobilization (Sekoai et al, 2018;), polymerbased immobilization (Ismail et al, 2011), and immobilization on nanoparticles (Shuttleworth et al, 2014;Seelert et al, 2015). These techniques have been widely studied and a number of attempts have been reasonably successful in optimizing the overall performance with respect to the process and design parameters namely bead size and cell loading, mass transfer coefficient, pH and immobilized biomass ratio , support materials, types of microorganisms immobilized, supplements, temperature (Satar et al, 2017), the bioavailability of organic portions of the biomass, and in exploring the possibility to integrate the synergistic influence of co-immobilization and using nanoparticles. Kerčmar and Pintar (2017) have demonstrated that the type of support material has a pivotal influence on the properties and behaviour of the attached biomass during anaerobic processes.…”

Section: Cell Immobilizationmentioning

confidence: 99%

A review of research trends in the enhancement of biomass-to-hydrogen conversion

et al. 2018

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Different types of biomass are being examined for their optimum hydrogen production potentials and actual hydrogen yields in different experimental setups and through different chemical synthetic routes. In this review, the observations emanating from research findings on the assessment of hydrogen synthesis kinetics during fermentation and gasification of different types of biomass substrates have been concisely surveyed from selected publications. This review revisits the recent progress reported in biomass-based hydrogen synthesis in the 2 associated disciplines of microbial cell immobilization, bioreactor design and analysis, ultrasound-assisted, microwave-assisted and ionic liquid-assisted biomass pretreatments, development of new microbial strains, integrated production schemes, applications of nanocatalysis, subcritical and supercritical water processing, use of algae-based substrates and lastly inhibitor detoxification. The main observations from this review are that cell immobilization assists in optimizing the biomass fermentation performance by enhancing bead size, providing for adequate cell loading and improving mass transfer; there are novel and more potent bacterial and fungal strains which improve the fermentation process and impact on hydrogen yields positively; application of microwave irradiation and sonication and the use of ionic liquids in biomass pretreatment bring about enhanced delignification, and that supercritical water biomass processing and dosing with metal-based nanoparticles also assist in enhancing the kinetics of hydrogen synthesis. The research areas discussed in this work and their respective impacts on hydrogen synthesis from biomass are arguably standalone. Thence, further work is still required to explore the possibilities and techno-economic implications of combining these areas for developing robust and integrated biomass-to-hydrogen synthetic schemes.

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“…Selain itu, pembangunan BES menunjukkan keupayaan logam nikel (Ni) sebagai elektrod memberikan prestasi yang tinggi dan stabil dalam jangka panjang (Baudler et al 2015;Michaelidou et al 2011;Satar et al 2017;Zhou et al 2016). Kajian yang dibuat oleh Baudler et.…”

Section: Ciri Bahan Elektrodunclassified

Stainless Steel Application as Metal Electrode in Bioelectrochemical System

Loh¹,

Shamsuddin²,

Yunus³

et al. 2018

JKUKM

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This paper reviews on the latest use and performance of several types of metals as electrodes within the development of bioelectrochemical systems (BES) including microbial fuel cells (MFC) and microbial electrolysis cells (MEC). The conventional carbon-based electrodes are typically used as an anode or cathode since the structure of the material is porous and are most suitable for the growth of electrochemically active bacteria (EAB). However, there are new developments that show the use of metal electrodes capable of producing higher current density and maximum power than carbon, due to the properties of metals such as high conductivity and mechanical strength, anti-corrosion as well as chemical structure stability. The surface modification strategy of metal promotes the EAB attachment and increases the biocompatibility or electron transfer between bacterial cell and electrode. Besides, cost-effective and easy to operate for the long-term is a contributing factor to the use of metal electrodes. To date, stainless steel becomes a common metal used in the development of BES.

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Immobilized mixed-culture reactor (IMcR) for hydrogen and methane production from glucose

Cited by 23 publications

References 34 publications

Alginate‐Encapsulated Bacteria for the Treatment of Hypersaline Solutions in Microbial Fuel Cells

Alginate‐Encapsulated Bacteria for the Treatment of Hypersaline Solutions in Microbial Fuel Cells

A review of research trends in the enhancement of biomass-to-hydrogen conversion

Stainless Steel Application as Metal Electrode in Bioelectrochemical System

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